Top Drive Drilling System 350 Ton Model Dq50-Bq for Max. 5000m Oil Well Drilling and Fishing

• Customization: Available
• After-sales Service: 3 Year
• Warranty: 1 Year
• Model NO.: DQ50-BQ
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Technical Document 1: Working Test Report
• Technical Document 2: Quality Certiifcate
• Operation Training: Provide for Free
• Spare Parts Kit: Shipped Together
• Special Design: Agreement with Clients
• After Sale Service: Dedicated Team
• Transport Package: Skid +Container
• Specification: 350T
• Trademark: VSP
• Origin: China
• HS Code: 8431431000
• Production Capacity: 120 Sets/Yesr
• Package Size: 600.00cm * 220.00cm * 220.00cm
• Package Gross Weight: 15000.000kg

Product Description

The top drive system is a drilling technology that uses a suspended motor (typically electric or hydraulic) to provide the torque needed to rotate the drill string. This system replaces the traditional rotary table and kelly drive methods, offering advantages like increased drilling efficiency, reduced manual labor, and improved safety

VSP new designed DQ50-BQ has been upgraded at many components based on the traditional top drive syetem, that make it has a competitive advantage which is a smaller size with bigger torgue and working efficience.

1. 1. Typical Parameter

Items	Data	(British System)
Nominal drilling depth (114mm drill pipe)	5000m
Rated Load capacity	3150 KN	350 ton
Working height (3.3m elevator link)	6600mm	21.56 ft
Rated continuous output torque	70 KN.m	4792.2 lb.ft
Max. Torque of breakout	100 KN.m	6846 lb.ft
Static maximum brake torque	70 KN.m	4792.2 lb.ft
Speed range of main shaft (stepless adjustable)	0~220 r/min
Drill pipe range of back-up tong clamping	85-220mm
Max bore hole of back up tong	200 mm	7.87 in
Mud circulation	64 mm	2.5 in
Rated pressure of the mud circulation	35/52 MPa	5000/7500 Psi
Rotation angle of rotating head	0-360°
Speed of rotating head	2~5r/min
Max.tilt angle of elevator link	Forward 30°, backward 55°
IBOP(double ball valves )	Φ187  6-5/8 REG  70MPa
Saver Sub ( standard )	Φ187  6-5/8 REG  NC50
Working Pressure of hydraulic system	0~14Mpa	0~2280 Psi
Voltage of EX solenoid valves	24 VDC
Rated Power of Main motor	800 KW	1073 HP
Rated Speed of Main motor	1200 r/min
Rated Torque of Main motor	2308 N·m	1702.29 lb.ft
Rated Voltage of Main motor	600 VAC
Rated frequency of Main motor	61 Hz
Rated current of Main motor	365 A
Max. speed of Main motor	2400 r/min
Electricity of VFD room	600 VAC/50Hz
Suitable ambient temperature	-45ºC~55ºC
Altitude	≤1,200 m	≤3,937ft
Distance between center of main shaft and center of guide rail	532.5mm	1.747ft
Incoming wire voltage of VFD room	575~625 VAC
Incoming wire frequency of VFD room	47~53 Hz

1. 1. Outline dimension and weight

Items	Data
Weight of Main body	12t
Weight of Main body (include transportation frame and one section of guide rail)	15 t
Length of guide rail ( standard 5 sections)	3900mm+4000mm*4+4868mm=24768mm
Weight of guide rail	5t
Weight of VFD room	9.2t
Dimension of VFD Room	5900mm*1740mm*1615mm
Dimension of driller console	870 mm×350 mm×300 mm
Weight of driller console	30kg

Mechanical system

The mechanical system is composed of main motor system, air cooling system, brake system, gear box, wash pipe assembly, rotating head mechanism, tilt mechanism, back-up tong mechanism, internal blowout prevention mechanism (IBOP), guide rail and carriage mechanism, container, etc.
The top drive is powered by an AC frequency conversion asynchronous motor to realize AC frequency conversion drive.

1. 1. 1. Main Motor and Air Cooling System

The main motor is a single top drive special AC frequency conversion asynchronous motor with a power of 290KW. The main technical parameters include:
Rated Voltage 600VAC
Rated Frequency 61Hz
Rated Current 365A
The main motor is equipped with a heater and an explosion-proof wind pressure switch
The main motor adopts forced air-cooling mode.
The air-cooling motor : voltage 380VAC / 50Hz, power 4kW, insulation grade F, protection grade IP55, explosion proof level ExdIICT4, wind capacity not less than 70 m3/min, air pressure 203mm water column.

1. 1. 1. Break System

The top drive main motor is equipped with a set of special hydraulic disc brake device, which can assist the drill string orientation in the directional inclined drilling operation.
The disc brake device is installed at the upper extension end of the motor shaft, using a pair of Swedish DELLNER cylinders connected by a special hard pipeline, durable. When the speed of the main motor is reduced to 3rpm, the friction forces on the brake disc through the brake cylinder can realize the braking function of the main motor.

1. 1. 1. Gear Box

In order to increase the output torque of the top drive motor, reduce the motor volume and improve the motor performance, one set of gear box is configured.
The gear box adopts involute hard tooth surface gear with secondary bevel gear to realize stable transmission, transmission ratio is 11.91:1. The lubrication in the box adopts the combination form of splash lubrication and forced lubrication by the oil pump circulation.

1. 1. 1. Gooseneck Assembly

The gooseneck is specially designed for well logging. During drilling, corrosion resistant liner and nuts are used to block the upper high-pressure mud pipeline to avoid mud overflow.
One end of the gooseneck is connected with the wash pipe assembly. The wash pipe assembly adopts the super high pressure structure, which is an important part of sealing the high pressure mud and adopts self-sealing and rapid disassembly structure. When the wash pipe and the packing are damaged by wearing and need to be replaced, merely open the cover of upper and lower packing to taker off the whole device without removing the gooseneck and the mud hose. It is easy to stop drilling to replace at any time during the drilling process.
Seamlessly connect the gooseneck with the mud hose using a robust 4-inch female port, ensuring a secure and efficient junction. This union is crafted with precision, featuring a Fig1003 thread type that guarantees reliability and endurance under pressure.
Enhance operational safety with a state-of-the-art mud prevention device situated precisely at the main shaft and wash pipe connection point, meeting all site operation standards.

1. 1. 1. Rotating Head

This advanced rotating head system, comprising one complete set, operates independently from the main shaft, while the elevator links are expertly suspended on its link adaptor, optimizing operational flexibility. The link adaptor provides a resilient and reliable suspension point for the elevator links, ensuring smooth and consistent performance.
Experience the smooth and reliable drive of our rotating head system, meticulously engineered with a worm gear transmission structure for seamless operation.
The rotating head is engineered to gracefully rotate either clockwise or counterclockwise through a full 360°, simultaneously rotating the elevator link and elevator to efficiently handle single pipes in the mouse hole and triple stems on the monkey board. Designed to grasp the pipe configurations effortlessly, whether in the mouse hole or on the monkey board.
Our rotating head is powered by a robust hydraulic motor system, featuring the Danfoss cycloid motor, with an adaptable speed range of 2 to 5 revolutions per minute, ensuring precise and controlled movements.

1. 1. 1. Tilt System

The tilt cylinder empowers the elevator link to execute precise swing movements, achieving both forward and backward tilts. The forward tilt enables the elevator to seamlessly reach the mouse hole and the monkey board with ease. During drilling operations, the backward tilt function ensures the lower end surface of the back up tong aligns closely with the drilling platform, maximizing the utilization of the drilling tools for superior efficiency.
The tilt mechanism is adaptable, with an adjustable forward tilt angle of 30° and a backward tilt angle of 55°, tailored to the length of the elevator link.
Note: For custom length configurations of elevator links, please engage with our sales team for tailored solutions.
Our hydraulic system is meticulously designed with a 'middle' setting in the tilt mechanism, allowing for automatic return of the elevator link, thus safeguarding the hydraulic system from undue pressure impacts during free swing states.

1. 1. 1. Counterbalance System

The suspension bail counterbalance system, a crucial component of the top drive system, connects with the gearbox via a pin shaft and is suspended from the hook or traveling block. Its main function is to balance the structural weight efficiently. The VSP top drive features a dual hydraulic cylinder system with internal force balance, directly connecting to the hook or traveling block. This configuration enhances safety and reliability, eliminating the need for additional devices.

1. 1. 1. Back Up Tong Assembly

Our system is equipped with a versatile L-type back up tong assembly, empowered with advanced motor and cylinder mechanisms to clamp, release, makeup, and breakout efficiently, allowing for effortless connection and disassembly without the need to dismantle the tong body, thus facilitating streamlined drilling operations. The assembly forms a cohesive pipe handling system in conjunction with the tilt mechanism and rotating head, significantly enhancing the efficiency of makeup and breakout operations, as well as drilling tool layout, while substantially reducing labor intensity and operational risks.
Our system is compatible with drill pipes ranging from 85 to 187 mm, ensuring broad applicability and versatility.

1. 1. 1. Internal Blow Out Preventer (IBOP)

This cutting-edge system is an integrated structure featuring both manual and remote control double ball valves. The primary technical specifications include:
Working Pressure 70 MPa, offering robust and reliable performance under demanding conditions.
Thread Type 6-5/8" API REG × 6-5/8" API REG, ensuring compatibility and secure connections.
Outer Diameter (O.D.) Φ187 mm, designed for precise fit and function.
Inner Diameter (I.D.) 3 inches, optimizing flow capacity and performance efficiency.
The actuator of the remote control IBOP comprises a sophisticated arrangement of hydraulic cylinders, a precisely engineered IBOP sliding sleeve, robust gears, and more. The connection type between the cylinder and the sliding sleeve is ingeniously designed for optimal performance. The innovative roller-touching mechanism ensures seamless synchronization of the axial relative movement of the sleeve with the rotation of the main shaft. This harmonious movement streamlines operations, allowing the drive wrench to effortlessly manage the opening and closing functions of the manual IBOP.
This remarkable capability allows for rapid closure of the IBOP, effectively containing sudden well kicks or blow-outs, thereby reinforcing well control safety measures with utmost efficiency.
The IBOP sliding sleeve harnesses a gear rack with cam gear design, significantly enhancing its operational reliability.

1. 1. 1. Guide Rail and Carriage

The system features a versatile folding guide rail assembly, comprising multiple sections of guide rails, secure connections, a crown block support, an adaptable adjustment beam assembly, and a comprehensive set of installation accessories.
Thanks to its folding design, the setup process on-site is not only swift but also remarkably convenient.
The carriage and guide rail friction system uses a sophisticated pulley structure.
The enhanced pulley design adopts a double side cam follower structure, ensuring even stress distribution across each roller and significantly extending its operational lifespan.

1. 1. 1. Container

Facilitating effortless transportation, two open-top containers are provisioned: one dedicated to housing the top drive body, and the other for the guide rail and cable assemblies.

Electrical Control System

The top drive's electrical control system is a marvel of engineering, featuring a main control system, an advanced electrical control room, a state-of-the-art driller's console, along with a comprehensive array of power cables, auxiliary and composite control cables, power supply cables, and dedicated driller's console cable, grounding cable, and more, ensuring seamless operations.
The system is powered by an AC asynchronous induction motor, delivering robust drilling power via an AC frequency conversion drive mode.

1. 1. 1. Main Control System

A complete electrical control system set is provided, utilizing the cutting-edge ABB ACS880 AC frequency conversion speed regulating device, a highly programmable logic controller (PLC), and an auxiliary control unit. This system boasts comprehensive self-diagnosis, protection, and anti-harmonic interference functions, executing all necessary electrical control functions for top drive operations with precision.
Incorporating the Simatic S7-1500 series PLC from Siemens, controlled via the ProfiBus-DP bus, the system adeptly manages operating parameter settings and efficiently monitors the hardware and software status.
The main control system and driller console are seamlessly operated by the ProfiBus bus, providing exceptional anti-interference capabilities, precise and reliable control, and are designed for user-friendly onsite installation, debugging, and maintenance.
Housing the auxiliary control unit alongside the PLC, the system utilizes top-quality Siemens electric components.
An IPC system is adeptly configured to display real-time top drive operation parameters, system settings, alarm records, action screens, data curves, maintenance information, and network topology functions.
Inside the main control cabinet, two analog output interfaces are reserved for torque and speed logging signals, providing options of 4 ~ 20 mA or 0~10V outputs.
Additionally, a reserved networking interface offers optional connectivity, facilitating seamless field connections to wireless or mobile networks, thus enabling remote data transmission for the top drive.

1. 1. 1. Electrical Control Room (VFD Room)

The electric drive and control system's cabinets are meticulously arranged within the electrical control room, ensuring secure installation and convenient maintenance.
Equipped with sophisticated air conditioning systems, the VFD room maintains an ideal temperature range of 25ºC - 30ºC.
The interior of the control room is tastefully outfitted with plastic spray steel plate, while the walls are equipped with interfaces for external cable connections, ensuring seamless integration and functionality.
Our state-of-the-art electric control room is ingeniously equipped with an external 380V emergency power interface, empowering you to seamlessly execute makeup, breakout, and low-speed operations even in special circumstances, with a reliable power supply not falling below 200KW.

1. 1. 1. Driller Console

Inside the robust driller house, a sophisticated driller console is expertly installed and securely fixed, providing unparalleled operation and control of the top drive.
Crafted with precision, the driller console boasts a sealing structure, encased in a stainless steel shell. It features a cutting-edge positive pressure explosion-proof design, complete with an advanced explosion-proof device including a pressure release valve, air and water separator, joints, interface, filters, and more. In the event of abnormal air pressure within the box, proactive sound and light alarms are triggered alongside corresponding indicator lights on the console's panel, ensuring heightened safety and awareness.
It offers a comprehensive suite of functions such as torque limit, elevator link tilt, back-up tong operation, brake operation, IBOP operation, emergency stop, and drilling operations. Essential indicators and instruments for seamless operations are thoughtfully included.
Meticulously configure the necessary switches, indicators, and installing fittings, alongside connectors to optimize the top drive operation experience.
Fitted with a high-resolution 9-inch LCD screen, the console panel vividly displays the working state, fault and other critical states of the top drive, ensuring you stay informed at all times.

1. 1. 1. Power Service Loop

A comprehensive power service loop (standard) is strategically equipped to supply robust power to the main motor,
with a terminal rack expertly mounted on the derrick to secure the power loop in place.
The power loop's cable adheres to ZR specifications, ensuring uncompromising safety and reliability for domestic offshore drilling.
Power Cable Length: 70m;
featuring premium explosion-proof connectors, achieving level Exd IIC T5 for maximum safety.

1. 1. 1. Auxiliary and Control Service Loop

Outfitted with an auxiliary and control service loop, cleverly matched in length with the power service loop for seamless integration.
The generous length of 70m;
comes with high-grade explosion-proof connectors, level Exd IIC T5, for unwavering reliability.

1. 1. 1. Power Supply Cable

Armed with a dependable power supply cable, linking the generator and electrical control room. With a length of 35m and voltage of 0.6/1KV, it utilizes standard wire lug connections for seamless integration.

1. 1. 1. Control Cable of Driller Console

A meticulously configured control cable facilitates efficient power supply and robust communication between the driller console and CPU, with an impressive length of 70m.

1. 1. 1. Grounding Cable

Equipped with a grounding cable assembly, made with premium domestic cable. It includes a 1.5 m galvanized grounding rod (2 pcs), ensuring reliable grounding, with a length of 5 m (2 pcs).

Hydraulic Control System

Expertly integrated into the top drive body, the hydraulic system consists of a comprehensive array of components including a hydraulic source, main control valve set, actuator, auxiliary parts, and oil radiator, delivering unmatched performance.

1. 1. 1. Hydraulic Source

At the heart of the hydraulic source lies the inclined axial plunger variable pump, specially designed for hydrostatic transmission in an open circuit. The flow dynamically adjusts in proportion to drive speed and displacement, enabling stepless adjustment via the inclined plate angle. The dual oil outlets on the shell boast superior oil-sucking characteristics, produce minimal noise, and promise a long service life, while the drive shaft is engineered to endure axial and radial loads.
The hydraulic source's electrical circuit system is expertly crafted with an explosion-proof design, employing top-tier explosion-proof components for the electrical control box and motor, ensuring maximum safety.
The primary technical parameters of our state-of-the-art hydraulic system include the following essential aspects:
Rated Working Pressure of System : 14 MPa
Rated Flow Rate of the Hydraulic Pump: 16 mL/r

1. 1. 1. Hydraulic Valve Manifold

Equipped with a singular hydraulic manifold, this setup features premium plug valves and solenoid valves that incorporate the trusted WANDFLUH hydraulic components. Additionally, the solenoid valves are also sourced from the renowned WANDFLUH Company.
The hydraulic control valves are expertly designed in a plug-in configuration, and all solenoid reversing valves are explosion-proof, ensuring unmatched safety and reliability. The detailed composition includes:
First Line: An innovative counterbalance system governs the oil circuit, comprising pressure relief overflow valves, hydraulic control check valves, throttle valves, and accumulators. This system primarily functions to maintain equilibrium of the body weight, safeguarding the threads against wear during joints makeup and breakout. The pressure relief overflow valve meticulously adjusts the working pressure of the balance cylinder, aligning it with the body's weight. The accumulator serves as a critical buffer, offering shock absorption and pressure protection. Equipped with a safety overflow valve set to 17MPa, the balance cylinder is shielded from impact loads, thus preserving the hydraulic cylinder.
Second Line: The main motor brake oil circuit is composed of advanced EX solenoid reversing valves, ensuring controlled operations.
Third Line: The motor oil circuit on the rotating head integrates explosion-proof solenoid reversing valves and pressure regulating valves. The solenoid valve's damping hole features hard alloy material, significantly enhancing its longevity.
Fourth Line: The remote control internal blowout preventer (IBOP) oil circuit is fitted with explosion-proof solenoid reversing valves, optimizing safety and performance.
Fifth Line: The back-up tong control oil circuit includes explosion-proof solenoid reversing valves, complemented by a pressure sensor for heightened precision.
Sixth Line: The Tilt system oil circuit combines explosion-proof solenoid reversing valves with throttle check valves and additional components. The solenoid valve enables reversing functions, while the throttle check valve ensures the elevator link remains stationary in any position for extended periods, and can also be adjusted to a swing state when centrally positioned.
Each of the aforementioned oil circuits is outfitted with pressure detection points, facilitating continuous monitoring of the working pressure. Concurrently, these points allow for the expulsion of air from each oil circuit and cylinder, ensuring seamless system operation.

1. 1. 1. Hydraulic Actuator

The comprehensive hydraulic actuator is comprised of the following integral components:
Counterbalance Cylinder (2 each), Brake Cylinder (2 each), Drive Motor of Rotating Head (1 each), IBOP Actuator Cylinder (2 each), Back-up Tong Cylinder (1 each), Tilt Cylinder (2 each).

1. 1. 1. Hydraulic Auxiliary Components

Our hydraulic auxiliary components are meticulously crafted, incorporating accumulators, filters, and an oil tank, among other essential elements.
Accumulators are distinctly categorized into brake accumulator and balance accumulator.
Our filtering system is segmented into oil filters, high-pressure filters, oil return filters, and air filters, each designed to maintain peak performance of the hydraulic system.
An upper-mounted oil tank is installed for optimal storage of hydraulic oil, crucial for system functionality and effective heat dissipation.

1. 1. 1. Radiator

Positioned strategically at the air inlet of the cooling blower, the radiator employs the main motor to forcibly cool hydraulic oil, thereby ensuring the hydraulic system's longevity and operational stability.